CN100558835C - A kind of water corrosion-resistant epoxy paint and preparation method - Google Patents
A kind of water corrosion-resistant epoxy paint and preparation method Download PDFInfo
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- CN100558835C CN100558835C CNB2007101852121A CN200710185212A CN100558835C CN 100558835 C CN100558835 C CN 100558835C CN B2007101852121 A CNB2007101852121 A CN B2007101852121A CN 200710185212 A CN200710185212 A CN 200710185212A CN 100558835 C CN100558835 C CN 100558835C
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Abstract
A kind of water corrosion-resistant epoxy paint and preparation method belong to the paint technical field, are used to solve improve that water corrosion-resistant epoxy paint is alkaline-resisting, the problem of weathering resistance.Improve the back: it is made up of A, B two components, the A component is made up of following weight unit's matter: chitin epoxy resin latex 45～50, red iron oxide 20～22, rust-stabilising pigment 8～10, talcum powder 8～10, defoamer 0.25～0.35, flow agent 0.25～0.35, anti-rust agent 0.35～0.45, the deionized water 8～10 of dodging; The B component is made up of following weight unit's matter: polyamide 650 58～62, alcohol ether organic solvent 38～42.The present invention utilizes the multiple good characteristic of chitin, preparation chitin water corrosion-resistant epoxy paint.This product has good emulsifying property, colloid protectiveness and antibacterial mildew inhibitor, can form good paint film, and can greatly improve its weathering resistance and alkali resistance.
Description
Technical field
The present invention relates to a kind of coating, particularly contain the water corrosion-resistant epoxy paint and the preparation method of chitin solution, belong to the paint technical field.
Background technology
Chitin claims chitin, chitin, chitosan again, is a kind of white or yellowish translucent solid, extensively be present in crab, shrimp, insect constant pitch main drive thing crust and the plant cell wall, and be a kind of natural biological high molecular polymer.Because chitin contains multiple functional group; therefore has stronger reactive behavior; it can carry out interlinkage and grafting, and reactions such as acidylate, sulfonation, carboxymethylation, alkylation, nitrated, halogenation, oxidation, complexing generate the chitin derivativ with different performance.Chitin is natural polymeric surface active agent simultaneously, and its molecular weight is more than thousands of, and it is strong to have emulsifying power, good dispersity and characteristics such as nontoxic.In addition, it also has good physicochemical property, outstanding alkali resistance, solvent resistance and good weathering resistance.
Resins, epoxy has strong adhesion, erosion resistance and solvent resistance, and advantage such as hardness height, wear resistance are good is widely used in each association area.Along with people are urgent day by day and strict to environmental requirement, therefore the epoxy coating Water-borne modification has also obtained fast development.Yet the commercial kind of aqueous epoxy coating is also fewer at present, many aspects performance is far away not as good as solvent type epoxy coating,, paint film easy efflorescence poor as outdoor weatherability, loss of gloss, paint film fullness ratio are bad or the like, and epoxypaint also needs to add some materials to improve its performance in Water-borne modification making processes.Significant physicochemical property such as can combine with water-borne coatings in view of chitin has, how chitin is applied to the research of aqueous epoxy coating aspect,, become the important development direction of aqueous epoxy coating to develop the product innovation of more adaptation market demands.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of water corrosion-resistant epoxy paint and preparation method who contains good alkaline-resisting, the weathering resistance of having of chitin solution is provided.
The alleged problem of the present invention is solved by following technical scheme:
A kind of water corrosion-resistant epoxy paint, its technical scheme is: it is made up of A, B two components, and described A component is made by following weight unit's matter: chitin epoxy resin latex 45～50; Red iron oxide 20～22; Rust-stabilising pigment 8～10; Talcum powder 8～10; Defoamer 0.25～0.35; Flow agent 0.25～0.35; The agent 0.35～0.45 of anti-sudden strain of a muscle rust; Deionized water 8～10; Described B component is made by following weight unit's matter: polyamide 6 50 58～62; Alcohol ether organic solvent 38～42.
Above-mentioned water corrosion-resistant epoxy paint, described chitin epoxy resin latex is made by following weight unit's matter: Resins, epoxy 38～42; Butanols 4～5; Emulsifier 600 4～5; Emulsifier op-10 1～1.5; The dispersion agent IW solution 4～5 of 10% concentration; Chitosan solution 28～32; Deionized water 18～22.
Above-mentioned water corrosion-resistant epoxy paint, described chitosan solution is the acid solution of chitosan, and described acid is formic acid or acetate, and described chitosan is the chitin of deacetylation 75%～80%, described rust-stabilising pigment is zinc phosphate or tripolyphosphate zinc, and described alcohol ether organic solvent is monobutyl ether or ethanol.
A kind of preparation method of water corrosion-resistant epoxy paint, it comprises preparation A, B two components, wherein, the preparation technology of A component is:
At first prepare the chitin epoxy resin latex, prepare the A component then, described chitin epoxy resin latex follows these steps to preparation:
A. take by weighing formula material according to proportioning, Resins, epoxy is heated to 60～70 ℃, add butanols and stir, add emulsifier 600 and emulsifier op-10 more in succession and continue to stir;
B. it is even chitosan solution to be added deionized water for stirring, adds 10%IW solution again, disperses in the high speed shear mulser;
C. a step gained material first is disperseed slowly to pour into simultaneously b step gained material second in the high speed shear mulser.
The preparation of A component:
Take by weighing formula material according to proportioning, red iron oxide, rust-stabilising pigment, talcum powder, anti-sudden strain of a muscle rust agent and deionized water are mixed, be distributed to fineness≤50 μ m under high speed shear, slowly add chitin epoxy resin latex, defoamer, flow agent simultaneously, stirring gets final product;
The preparation of B component:
Get formula material according to the proportioning border, polyamide 6 50 is dissolved in the alcohol ether organic solvent, stirring gets final product its dissolving fully.
The preparation method of above-mentioned water corrosion-resistant epoxy paint, described chitin epoxy resin latex is made by following weight unit's matter: Resins, epoxy 38～42; Butanols 4～5; Emulsifier 600 4～5; Emulsifier op-10 1～1.5; The dispersion agent IW solution 4～5 of 10% concentration; Chitosan solution 28～32; Deionized water 18～22.
The preparation method of above-mentioned water corrosion-resistant epoxy paint, described chitosan solution is the acid solution of chitosan, described chitosan is the chitin of deacetylation 75%～80%, and described rust-stabilising pigment is zinc phosphate or tripolyphosphate zinc, and described alcohol ether organic solvent is monobutyl ether or ethanol.
Product utilization chitin emulsifying capacity of the present invention is strong, dispersing property is good, characteristics such as the film-forming properties that bacteriostasis is strong and good, alkali resistance, solvent resistance, weathering resistance and safety non-toxic, prepare stable chitin aqueous epoxy emulsion earlier, then this emulsion is added rust-stabilising pigment, filler, auxiliary agent and is equipped with epoxy hardener, prepare novel chitin water corrosion-resistant epoxy paint.Compare with common water corrosion-resistant epoxy paint, this product has good emulsifying property, colloid protectiveness and antibacterial and mouldproof, can form good paint film, and can greatly improve its weathering resistance and alkali resistance.
Embodiment
It is 75%～80% chitin that the present invention selects deacetylation for use, it is dissolved in the diluted acid of formic acid or acetate obtains chitosan solution, adding butanols then in Resins, epoxy suitably dilutes, effect by adding emulsifying agent and add above-mentioned chitosan solution again, adopt high-speed physical emulsive method to obtain stable chitin aqueous epoxy emulsion, then this emulsion is added auxiliary agent such as rust-stabilising pigment, filler and be equipped with epoxy hardener, prepare the chitin water corrosion-resistant epoxy paint.When making at present conventional aqueous epoxy coating, no matter whether add thickening materials such as carboxyethyl cellulose therein, but all can't obtain peculiar alkaline-resisting, the weather resistance of the present invention.In addition, in making aqueous epoxy coating, also need to add auxiliary agents such as mould inhibitor, they all have only simple function.And chitin belongs to natural polymers, and it is strong that it has emulsifying capacity, and dispersing property is good, the film-forming properties that bacteriostasis is big and good, and have both the needed emulsifying property of aqueous epoxide resin paint, colloid protective value.Chitin is applied to can greatly improve its weathering resistance, alkali resistance in the water corrosion-resistant epoxy paint, forms a kind of novel aqueous epoxy coating product.
Following table is product of the present invention and unimproved epoxy primer performance synopsis, can see that therefrom the present invention is adding the premium properties that brings behind the chitosan.
Embodiment
The so-called aqueous epoxy coating of the present invention can comprise chitin water-base epoxy varnish, chitin water-base epoxy colored paint and chitin water corrosion-resistant epoxy paint.Characteristics such as the emulsifying capacity that it utilizes this natural polymers of chitin (chitosan) to be had is strong, dispersing property is good combine a kind of novel chitin aqueous epoxy coating of preparation with it with Resins, epoxy.Aqueous epoxy emulsion pH value described in the present invention is 5～6, is acid, comprises alcoholic solvent, emulsifying agent, dispersion agent, auxiliary agent in interior, and chitosan solution plays thickening material in coating.The chitin that is adopted is a kind of or its mixture in chitin or the chitin derivativ chitosan.
Several specific embodiments below are provided:
Embodiment 1:
Unit takes by weighing following raw material by weight: Resins, epoxy 38; Butanols 5; Emulsifier 600 5; OP-10 1; The dispersion agent IW solution 4.5 of 10% concentration; Chitosan solution 30; Deionized water 20.Resins, epoxy is heated to 60～70 ℃, adds butanols and stir, add respectively again emulsifying agent and OP-10 (OP-10 is Triton-100 again) continue to stir the material first; It is even that chitosan solution is added deionized water for stirring, adds the dispersion agent IW solution of 10% concentration again, in the high speed shear mulser, disperse material second; The material first is disperseed slowly to pour in the material second simultaneously in the high speed shear mulser, obtain the chitin epoxy resin latex.
Unit takes by weighing following raw material by weight: chitin epoxy resin latex 47, red iron oxide 21, zinc phosphate (rust-stabilising pigment) 9, talcum powder 9, defoamer 0.3, flow agent 0.3, anti-rust agent 0.4, the deionized water 9 of dodging; Polyamide 65060, monobutyl ether 40.
The A component preparation of water corrosion-resistant epoxy paint: above-mentioned red iron oxide, zinc phosphate, talcum powder, anti-sudden strain of a muscle rust agent and deionized water are mixed, under high speed shear, be distributed to fineness≤50 μ m, simultaneously slowly add chitin epoxy resin latex, defoamer, flow agent, stir.
The B component preparation of water corrosion-resistant epoxy paint: above-mentioned polyamide 6 50 is dissolved in the monobutyl ether, stirs and make its dissolving fully.
Embodiment 2:
Unit takes by weighing following raw material by weight: Resins, epoxy 40, butanols 4, emulsifier 600 4, OP-10 1.0, the dispersion agent IW solution 4 of 10% concentration, chitosan solution 32, deionized water 18.Resins, epoxy is heated to 60～70 ℃, adds butanols and stir, add respectively again emulsifying agent and OP-10 continue to stir the material first; It is even that chitosan solution is added deionized water for stirring, adds the dispersion agent IW solution of 10% concentration again, in the high speed shear mulser, disperse material second; The material first is disperseed slowly to pour in the material second simultaneously in the high speed shear mulser, obtain the chitin epoxy resin latex.
Unit takes by weighing following raw material by weight: chitin epoxy resin latex 50, red iron oxide 20, zinc phosphate 10, talcum powder 10, defoamer 0.25, flow agent 0.35, anti-rust agent 0.45, the deionized water 8 of dodging; Polyamide 650 58, monobutyl ether 38.
A component preparation: above-mentioned red iron oxide, zinc phosphate, talcum powder, anti-sudden strain of a muscle rust agent and deionized water are mixed, under high speed shear, be distributed to fineness≤50 μ m, slowly add chitin epoxy resin latex, defoamer, flow agent simultaneously, stir.
B component preparation: above-mentioned polyamide 6 50 is dissolved in the monobutyl ether, stirs and make its dissolving fully.
Embodiment 3:
Unit takes by weighing following raw material by weight: Resins, epoxy 42, butanols 4.5, emulsifier 600 4.5, OP-10 1.5, the dispersion agent IW solution 5 of 10% concentration, chitosan solution 28, deionized water 22.Resins, epoxy is heated to 60～70 ℃, adds butanols and stir, add respectively again emulsifying agent and OP-10 continue to stir the material first; It is even that chitosan solution is added deionized water for stirring, adds the dispersion agent IW solution of 10% concentration again, in the high speed shear mulser, disperse material second; The material first is disperseed slowly to pour in the material second simultaneously in the high speed shear mulser, obtain the chitin epoxy resin latex.
Unit takes by weighing following raw material by weight: chitin epoxy resin latex 45, red iron oxide 22, zinc phosphate 8, talcum powder 8, defoamer 0.35, flow agent 0.25, anti-rust agent 0.35, the deionized water 10 of dodging; Polyamide 650 62, monobutyl ether 42.
A component preparation: above-mentioned red iron oxide, zinc phosphate, talcum powder, anti-sudden strain of a muscle rust agent and deionized water are mixed, under high speed shear, be distributed to fineness≤50 μ m, slowly add chitin epoxy resin latex, defoamer, flow agent simultaneously, stir.
B component preparation: above-mentioned polyamide 6 50 is dissolved in the monobutyl ether, stirs and make its dissolving fully.
Embodiment 4:
Unit takes by weighing following raw material by weight: Resins, epoxy 39, butanols 4.6, emulsifier 600 4.7, OP-10 1.4, the dispersion agent IW solution 4.2 of 10% concentration, chitosan solution 29, deionized water 21.Resins, epoxy is heated to 60～70 ℃, adds butanols and stir, add respectively again emulsifying agent and OP-10 continue to stir the material first; It is even that chitosan solution is added deionized water for stirring, adds the dispersion agent IW solution of 10% concentration again, in the high speed shear mulser, disperse material second; The material first is disperseed slowly to pour in the material second simultaneously in the high speed shear mulser, obtain the chitin epoxy resin latex.
Unit takes by weighing following raw material by weight: chitin epoxy resin latex 46, red iron oxide 20.5, tripolyphosphate zinc 8.5, talcum powder 9.5, defoamer 0.32, flow agent 0.28, anti-rust agent 0.37, the deionized water 9.5 of dodging; Polyamide 650 61, ethanol 41.
A component preparation: above-mentioned red iron oxide, tripolyphosphate zinc, talcum powder, anti-sudden strain of a muscle rust agent and deionized water are mixed, under high speed shear, be distributed to fineness≤50 μ m, slowly add chitin epoxy resin latex, defoamer, flow agent simultaneously, stir.
B component preparation: above-mentioned polyamide 6 50 is dissolved in the ethanol, stirs and make its dissolving fully.
Embodiment 5:
Unit takes by weighing following raw material by weight: Resins, epoxy 41, butanols 4.3, emulsifier 600 4.3, OP-10 1.1, the dispersion agent IW solution 4.8 of 10% concentration, chitosan solution 31, deionized water 19.Resins, epoxy is heated to 60～70 ℃, adds butanols and stir, add respectively again emulsifying agent and OP-10 continue to stir the material first; It is even that chitosan solution is added deionized water for stirring. add the dispersion agent IW solution of 10% concentration again, in the high speed shear mulser, disperse material second; The material first is disperseed slowly to pour in the material second simultaneously in the high speed shear mulser, obtain the chitin epoxy resin latex.
Unit takes by weighing following raw material by weight: chitin epoxy resin latex 47, red iron oxide 21.5, zinc phosphate 9.5, talcum powder 8.5, defoamer 0.34, flow agent 0.26, anti-rust agent 0.34, the deionized water 10 of dodging; Polyamide 650 59, monobutyl ether 40.
A component preparation: above-mentioned red iron oxide, zinc phosphate, talcum powder, anti-sudden strain of a muscle rust agent and deionized water are mixed, under high speed shear, be distributed to fineness≤50 μ m, slowly add chitin epoxy resin latex, defoamer, flow agent simultaneously, stir.
B component preparation: above-mentioned polyamide 6 50 is dissolved in the monobutyl ether, stirs and make its dissolving fully.
Claims (4)
1. water corrosion-resistant epoxy paint, it is characterized in that: it is made up of A, B two components, and described A component is made by following weight unit's matter: chitin epoxy resin latex 45～50; Red iron oxide 20～22; Rust-stabilising pigment 8～10; Talcum powder 8～10; Defoamer 0.25～0.35; Flow agent 0.25～0.35; The agent 0.35～0.45 of anti-sudden strain of a muscle rust; Deionized water 8～10; Described B component is made by following weight unit's matter: polyamide 6 50 58～62; Alcohol ether organic solvent 38～42.
2. water corrosion-resistant epoxy paint according to claim 1 is characterized in that: described chitin epoxy resin latex is made by following weight unit's matter: Resins, epoxy 38～42; Butanols 4～5; Emulsifier 600 4～5; Emulsifier op-10 1～1.5; The dispersion agent IW solution 4～5 of 10% concentration; Chitosan solution 28～32; Deionized water 18～22.
3. water corrosion-resistant epoxy paint according to claim 2, it is characterized in that: described chitosan solution is the acid solution of chitosan, described acid is formic acid or acetate, described chitosan is the chitin of deacetylation 75%～80%, described rust-stabilising pigment is zinc phosphate or tripolyphosphate zinc, and described alcohol ether organic solvent is monobutyl ether or ethanol.
4. method for preparing water corrosion-resistant epoxy paint as claimed in claim 3, it is characterized in that: described water corrosion-resistant epoxy paint is A, B two components, and wherein, the preparation technology of A component is:
At first prepare the chitin epoxy resin latex, prepare the A component then, described chitin epoxy resin latex follows these steps to preparation:
A. take by weighing formula material according to proportioning, Resins, epoxy is heated to 60～70 ℃, add butanols and stir, add emulsifier 600 and emulsifier op-10 more respectively and continue to stir;
B. it is even chitosan solution to be added deionized water for stirring, adds the dispersion agent IW solution of 10% concentration again, disperses in the high speed shear mulser;
C. a step gained material is disperseed slowly to pour into simultaneously b step gained material in the high speed shear mulser;
The preparation of A component:
Take by weighing formula material according to proportioning, red iron oxide, rust-stabilising pigment, talcum powder, anti-sudden strain of a muscle rust agent and deionized water are mixed, be distributed to fineness≤50 μ m under high speed shear, slowly add chitin epoxy resin latex, defoamer, flow agent simultaneously, stirring gets final product;
The preparation of B component:
Take by weighing formula material according to proportioning, polyamide 6 50 is dissolved in the alcohol ether organic solvent, stirring gets final product its dissolving fully.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101899256B (en) * | 2010-05-21 | 2012-09-26 | 资阳赛特化工有限公司 | Water-based transparent anticorrosive paint, preparation method and application method thereof |
| CN102020909A (en) * | 2010-12-15 | 2011-04-20 | 湖南三力达化工有限公司 | High-performance aqueous epoxy anticorrosive paint for steel structures |
| CN102391759B (en) * | 2011-09-30 | 2013-09-25 | 广州擎天实业有限公司 | Aqueous anti-corrosion paint used for automobile aluminium alloy parts and preparation method thereof |
| CN102627905B (en) * | 2012-04-18 | 2014-04-02 | 天长市巨龙车船涂料有限公司 | Waterborne epoxy anti-corrosive coating and preparation method thereof |
| CN102876193A (en) * | 2012-09-26 | 2013-01-16 | 苏州汾湖电梯有限公司 | Anticorrosive coating for decorative surface of elevator |
| CN103468092B (en) * | 2013-09-24 | 2016-01-20 | 江苏华夏制漆科技有限公司 | A kind of aqueous coating for engineering goods surface |
| CN104293106A (en) * | 2014-10-28 | 2015-01-21 | 山东中大药业有限公司 | Water-based anticorrosive paint and preparation method thereof |
| CN104403499B (en) * | 2014-11-20 | 2016-09-07 | 南宁市老永淳红木家具厂 | A kind of water paint and preparation method thereof |
| CN105086770A (en) * | 2015-09-17 | 2015-11-25 | 浙江钱浪涂料科技有限公司 | Iron oxide red water-based epoxy rust-proof primer and preparing method thereof |
| CN105199541B (en) * | 2015-10-27 | 2017-06-09 | 沈阳化工大学 | A kind of preparation method of water-based anticorrosive paint |
| CN110724439A (en) * | 2019-11-19 | 2020-01-24 | 广东恒宝缘新材料有限公司 | Water-based epoxy heavy-duty anticorrosive paint |
| CN111621215A (en) * | 2020-06-29 | 2020-09-04 | 浙江高敦新材料科技有限公司 | Chitosan modified high-solid-content ship anticorrosive paint |
| CN113502125A (en) * | 2021-07-30 | 2021-10-15 | 深圳市爱丽客精细化工有限公司 | Preparation method of degradable bio-organic polymer modified epoxy coating |
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2007
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| 水性环氧防腐涂料及应用性能的研究. 姜美荣.涂料工业，第35卷第9期. 2005 |
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